Work stool



FIG. 1 is a top rear perspective view of a work stool showing my new design.

FIG. 2 is a rear elevational view thereof.

FIG. 3 is a front elevational view thereof

FIG. 4 is a left side elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top front perspective thereof.

The broken lines in the figures are for the purpose of illustrating portions of the work stool, which form no part of the claimed design. 

CLAIM The ornamental design for a work stool, as shown and described. 